One Line Clear: Logic Puzzle

One Line Clear is an offline logic puzzle game with 100 levels built around one continuous line. Plan your path, flip black-and-white tiles, and make every row a single color.

ONE LINE, A DIFFERENT WAY TO THINK
Connect adjacent spaces horizontally or vertically. When you confirm your route, tiles flip in sequence. Each row must end in one color, but different rows can have different colors.

PLAN, PREVIEW, REFINE
Preview your path before committing. Step back, extend it, reverse its direction, or redraw it to explore another solution. Use the gray outer frame to connect parts of the board without flipping extra tiles.

100 LEVELS TO EXPLORE
Learn the basics with guided tutorials, then work through the chapters of one-line puzzles. Replay completed boards and look for the shortest route to earn a perfect clear.

A LITTLE HELP WHEN YOU NEED IT
Use an endpoint hint to find a starting direction, or a route hint when a puzzle has you stuck.

OFFLINE, WITHOUT ADS
Enjoy single-player puzzle solving without an internet connection, ads, or an account. Local progress saving lets you return to your puzzles later.

If you enjoy path planning, tile-flipping puzzles, and brain teasers, explore what one carefully chosen line can do.